The trace element and humoral immune response of lambs administered a zinc, cobalt and selenium soluble glass bolus

Kendall, N.R.; Mackenzie, A.M.; Telfer, S.B.

doi:10.1016/j.livsci.2012.05.013

Cited by 12 publications

(14 citation statements)

References 22 publications

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“…Administration of a zinc, cobalt, and selenium soluble glass bolus to growing lambs resulted in significantly increased plasma zinc concentrations, erythrocyte GSHPx activities and serum vitamin B 12 compared to control group lambs grazing the same pasture (Kendall et al, 2012). The NRC suggested that Zn requirement for sheep vary from 20 to 33 mg/kg feed DM.…”

Section: Resultsmentioning

confidence: 99%

“…Plasma Zn concentrations on day 15, 30, 45 and 60 of the experiment were increased from 0.84 mg/L to 1.42 mg/L for all levels of Zn supplementation and were higher for the treatment group supplemented with 30 and 45 mg Zn/kg DM compared with 15 mg/kg ( Jia et al, 2008 ). Administration of a zinc, cobalt, and selenium soluble glass bolus to growing lambs resulted in significantly increased plasma zinc concentrations, erythrocyte GSHPx activities and serum vitamin B 12 compared to control group lambs grazing the same pasture ( Kendall et al, 2012 ). The NRC suggested that Zn requirement for sheep vary from 20 to 33 mg/kg feed DM.…”

Section: Resultsmentioning

confidence: 99%

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Effects of Housing Systems and the Diet Supplements on the Slaughter Value and Concentration of Mineral Elements in the Loin Muscle of Lambs

Gabryszuk

Kuznicka

Horbańczuk

et al. 2014

Asian Australas. J. Anim. Sci

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The objective of this study was to investigate the effect of maintenance system as well as the effect of Se, Zn, and vitamin E supplementation of ram-lambs on the slaughter value and concentration of mineral elements in the loin muscle of lambs. The experiment was conducted on 72 Polish Merino ram-lambs divided into three groups: group C, indoor with no supplement, 19 lambs; S, indoor with supplement, 23 lambs; G, outdoor with no supplement, 30 lambs. From birth all the lambs were maintained indoor with their dams and then weaned at the age of 8 weeks. The rams from group C and S were placed in individual straw-bedded pens and fattened individually with concentrate mixture offered ad libitum until the age of 16 weeks. The lambs from group G were grazed every day from May to July (2 months). During the fattening period each lamb from the supplemented group S was administered per os 1 mL 0.1% Na2SeO4 (Se, 0.42 mg), 3 mL 10% ZnSO4 (Zn, 68 mg), and 1 mL premix protect vitamin E (0.1 g α-tocopherol, 5 mg lysine, 5 mg methionine) daily. A comparison of half carcasses across the groups has shown no difference between the control group and the one with supplements, while the weight of half carcasses in the grazing group was smaller in comparison with groups C and S (p<0.001). The meat content in the pelvic limb showed no differences across all groups under study. The pelvic limb of grazing lambs contained less fat compared to the control and supplemented groups (p<0.001). The concentrations of Se and Zn in the blood plasma of ram-lambs from the supplemented group were significantly higher than for the control and grazing lambs. Inorganic Se and Zn supplementation with vitamin E to the diet of lambs increased Se and Zn levels in loin muscle (p<0.001) to 0.46 μg/g and 32.9 μg/g in fresh tissue, respectively.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Effects of Housing Systems and the Diet Supplements on the Slaughter Value and Concentration of Mineral Elements in the Loin Muscle of Lambs

Gabryszuk

Kuznicka

Horbańczuk

et al. 2014

Asian Australas. J. Anim. Sci

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“…Also, in the additional 21 days of life postweaning for the unsupplemented lambs, there is the potential for additional lamb disease or mortality, which is not accounted for here, and could increase the difference in net profit margin between supplemented and unsupplemented lambs. This could be especially pertinent given that bolus supplementation of zinc, selenium and cobalt has been linked to increased humoral responses in lambs,6 which may lead to improved disease resistance and survival rates.…”

Section: Outcome and Follow‐upmentioning

confidence: 99%

Effect of cobalt supplementation on lamb growth rates in the face of cobalt deficiency

Hamer¹,

Mylin²,

Barrie

et al. 2020

Vet Record Case Reports

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A hill farm in eastern Scotland had noted poor lamb growth rates since 2014. Cobalt, selenium and copper deficiencies were reported from historical blood sample results, and trace element supplementation had been administered to the ewes, but not the lambs. A supplementation trial was undertaken in 2018 to compare the daily liveweight gain (DLWG) between lambs supplemented with trace elements and unsupplemented lambs. The trace element supplements used were intraruminal boluses containing 51-mg cobalt, 10-mg selenium and 60-mg iodine (Downland Essential Lamb bolus, Downland). Blood samples taken two months postsupplementation showed that unsupplemented lambs had cobalt-deficient status, but not selenium deficiency. Lambs supplemented with the trace element boluses had an increase in DLWG of 49 g/day compared with unsupplemented lambs. This case confirms that cobalt supplementation on deficient farms can be associated with a significant improvement in growth rates of growing lambs on Scottish hill farms.

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“…Ewes may be supplemented with 10 g at 3-4 weeks prior to mating, while cows should receive 2 × 30 g during early gestation [32]. Soluble glass boluses containing I [36] and other elements [37, 38] have been developed in the United Kingdom, but are not available for use in New Zealand.…”

Section: Supplements Providing Long-term Efficacymentioning

confidence: 99%

Trace Element Supplementation of Livestock in New Zealand: Meeting the Challenges of Free-Range Grazing Systems

Grace

Knowles

2012

Veterinary Medicine International

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Managing the mineral nutrition of free-range grazing livestock can be challenging. On farms where grazing animals are infrequently yarded, there are limited opportunities to administer trace element supplements via feeds and concentrates. In New Zealand, where the majority of sheep, cattle, and deer graze pasture year round, inadequate intake of cobalt, copper, iodine and selenium is prevalent. Scientists and farmers have developed efficient strategies to monitor and treat these dietary deficiencies. Supplementation methods suited to grazing livestock include long-acting injections, slow-release intraruminal boluses, trace element-amended fertilisers, and reticulated water supplies on dairy farms.

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The trace element and humoral immune response of lambs administered a zinc, cobalt and selenium soluble glass bolus

Cited by 12 publications

References 22 publications

Effects of Housing Systems and the Diet Supplements on the Slaughter Value and Concentration of Mineral Elements in the Loin Muscle of Lambs

Effects of Housing Systems and the Diet Supplements on the Slaughter Value and Concentration of Mineral Elements in the Loin Muscle of Lambs

Effect of cobalt supplementation on lamb growth rates in the face of cobalt deficiency

Trace Element Supplementation of Livestock in New Zealand: Meeting the Challenges of Free-Range Grazing Systems

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